Hi,
I'm currently toying with pyclutter, and I tried to use
Clutter.BehaviourRotate in one little program.
I custom a cube, and want it rotate on x,y,z axis, like this:
animation = self.animate(clutter.EASE_OUT_BOUNCE, 1500,
"rotation-angle-y", angle, #90
"fixed::rotation-center-y", self._vertex_t,
"fixed::reactive", False)
after rotation, z axis is still the same, but x axis is point to reverse z
axis.
Ths two axes point to the same direction.I dont know is a bug or an improper
usage?
Then, i try text_rotate.c, set loop is false, change rotation angle to 90,
then,
connect the "completed" signal to the timeline, in callback add another
rotation.
Change the two rotation's axis, i find the appearance as follow:
rotation | after rotation
axis angle | x y z
y 90 | -z y z
x 90 | x y z
z 90 | -y x z
This problem has worried me several days.I want to understand to the truth
about rotation.
Thanks
